Manufacture of book-files for cards and the like



A. GILBERT. MANUFACTURE OF BOOK FILES FOR CARDS AND THE LIKE.

APPLICATION FILED DEC.24, l9l8- Patented Dec. 6, 1921..

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by declare the following tobe a full, clear,

and exact description of the same.

My invention comprises improvements in the manufacture of book files for cards and the like, more particularly of files of the kind wherein the leaves of the book are provided with cords or the like. forming loops for carrying a number of cards or the like in such a manner that the whole of the cards are simultaneously dis layed.

In one prior form of file the corcs pass across the corners of the card to be filed, these cords being threaded through holes preferably eyeleted. The threading of these cords has hitherto been effected by hand and the object of the present invention is to enable this to hedone in a cheaper and more expeditious manner.

According to this invention the cord is applied by means of a sewing machine which makes a long stitch extending as across the corner of the are and beneath which the corner of the card may be inserted. f

The sewing machine employed is of that kind which is adapted to stop or to be stopped after each descentof the needle, such machines being commonly used for embroidery purposes andbeing known as fanning machines.

1n the accompanying drawings:

Figure 1. illustrates a leaf for a file manufactured according to this invention.

, Fig. 2 is a sectional View through part of same.

Fig. 3 illustrates a leaf showing a modifled arrangement of threads.

In carrying this invention into practice asillustrated upon the accompanying drawings, the paper or cardboard 1 from which the file is to be produced is placedbeneath the sewing machine and the needle then descends at a point adjacent one of the corners of the card (4;) position, making the first stitch. The machine then stops under the control of a clutch and the leaf 1 of the Specification of Letters Patent.

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Application filed December 2a, 1918'. Serial No. 268,136.

file is moved to a position adjacent the neat side of the card position and so as to cross the corner thereof, after which the machine is restarted, making another stitch at this point and thus producing a long loop on eachfface of the paper. The operation is repeated so to provide loops around one or more of the cards.

Figs. 1-3 show two forms of the finished article in one of which, illustrated by Figs. 1 and 2, the cards 4 are secured beneath the cords 524 which are tied. at the starting point and at the finish, this being attained by making a double stitch at these points, these two stitches; being indicated by 26 and 27. The loose ends of the cords may also be braided and secured by a seal 28 orthe like. Fig. 2 shows an enlarged section illustrating one form of stitch which may be employed and known asa lock stitch ln 3 an arrangement of cords 2a in substantially octagonal form is shown whereby the cards 4: may be secured with their longest sides vertical as shown or horizontal as shown by the dotted lines.

lln the case of loose leaf files the stitch may start adjacent the binding edge of the sheet so that when the sheets are clamped together the threads will be firmly held by the pressure between the sheets.

in the prior form to which l have referred, in the event of the cord breaking at any one point the whole length of cord would become loose, but according to this invention, by making a double or treble stitch at each point, each short length or loop of cord is firmly locked so that breakage of one loop will not affect any of the other loops.

What I claim is:--

1.. A leaf for book files comprising cardholding strands of cord adapted to receive beneath them and hold the corners of cards to the leaf, said strands being mutually secured to the leaf by lock-stitehing.

2. A leaf for a book file for cards com.-

prising a sheet upon both surfaces of which are formed a series of long stitches adapted to hold the corners-of cards, all the long stitches upon'one side of the sheet being formed from one length of cord and all the long stitchesupon the other side of the sheet being formed from another length of cord,

'the two lengths of cord being-iiriited toe gether by one of them passing through the sheet and engaging with the other at the ends of each long stitch.

In testimony whereof, I have signed my name to this specification.

ALFRED GILBERT. 

